what is the difference between KVAR & KVA ?
Answers were Sorted based on User's Feedback
KVA: For transformer the rating will be mentioned in KVA
b'coz real power are expressed in terms of voltage and
current not dependent on powerfactor.
KVAR: It is reactive apparant power ie., kVAr=kW*TAN PI
Is This Answer Correct ? | 42 Yes | 11 No |
Answer / bindu
KVAR-Kilo Volt Ampere Reactive, it is mentioned for
Capacitor rating.
KVA-Kilo Volt Ampere,it is mentioned for Generator rating.
Is This Answer Correct ? | 37 Yes | 12 No |
Answer / nkwocha obinna
KVA = V*I
KW = V*I*cos theta
KVAR = V*I*sine theta
kw is the real power
kva is the apparent power
kvar is the reactive power
Is This Answer Correct ? | 9 Yes | 1 No |
Answer / arun
kva is apparant pawer which is used for transformer or generator rating
while kvar is reactive power kilo volt ampere reactive it does not do any work in the circuit only moves forth and back .
m i wrong ?
if yes suggest correct answer
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / venkatesh
from power triangle we have kva^2=kw^2+kvar^2
Is This Answer Correct ? | 8 Yes | 5 No |
Answer / anand
KVAR is the reactive power utilised by the generators,
transformers, motors for producing magnetic flux
KW (true power) is the actual power or true power that
performs actual work
KVA ( Apparent power)is the vector summation of KW+KVAR
KVA=KW+KVAR
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / shriram gaur
KVA=V*I
this is used for measureing the total power fed into the
ckt, so generally used in defining the rating of the
transformer, also independent of PF.
KVAR - sqrt((KVA*KVA)-(KW*KW))
This is the correct relationship between the all three
power.
Is This Answer Correct ? | 7 Yes | 13 No |
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